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Gtir Motorsport club » General Discusion » Gtir related Discussion » Power problem

Power problem

+14
Cosmic73
mike74
ADSgtir
GTI-R US
Mr B
GTIR James
ducie54
astarozna
toaster55
Stu
GTi ARGHH
johnny gtir
nomad
PartyPete
18 posters

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101Power problem - Page 5 Empty Re: Power problem 12th March 2017, 12:30 pm

Mr B

Mr B
gtir technician
gtir technician

Have a look at this thread for info on temp sensor
http://www.gtir-motorsport-club.com/t6965-need-expert-advise-for-start-up-issues#102710

102Power problem - Page 5 Empty Re: Power problem 12th March 2017, 1:37 pm

ADSgtir



It's a bit tricky to diagnose idle quality : your cams have been moved , we don't know where , this can effect the idle vacuum - that is the amount of air that the engine pulls in to run at idle .
Also you map has been set for your injectors (larger)at that idle vacuum and maybe even with a vacuum leak on top (split hose )
You really need a good tuner to find out where you are currently and start from scratch and make adjustments as necessary : throttle cable , cold start values , idle targets , vacuum , fuel pressure etc

103Power problem - Page 5 Empty Re: Power problem 12th March 2017, 3:37 pm

Mr B

Mr B
gtir technician
gtir technician

∆
Was running okay for some time after the cam sprockets/tune and this issue developed after turbo failure.
Could be worth looking at idle assembly incase turbo debris or general old age affecting it . Also lambda worth checking if using one .

104Power problem - Page 5 Empty Re: Power problem 12th March 2017, 4:16 pm

PartyPete

PartyPete
the one star club
the one star club

Had the idle assembly out and stripped a couple weeks ago and all was fine. The idle adjustment screw is that chewed up and fucked I can't turn it to adjust to see if that helps!

105Power problem - Page 5 Empty Re: Power problem 17th March 2017, 8:46 am

PartyPete

PartyPete
the one star club
the one star club

So...looks like I've cured the idle issue....any one want to take a guess at what was causing it? ( it wasn't any of the parts I've replaced that I listed above)....

106Power problem - Page 5 Empty Re: Power problem 17th March 2017, 9:10 am

mike74

mike74

Leprechaun put a hex on your lambda sensor?

107Power problem - Page 5 Empty Re: Power problem 17th March 2017, 9:14 am

Cosmic73

Cosmic73

Was it the onset of Alzheimers making your foot shake? Very Happy Very Happy

108Power problem - Page 5 Empty Re: Power problem 17th March 2017, 9:34 am

PartyPete

PartyPete
the one star club
the one star club

Close guys but not quite.....any others?

109Power problem - Page 5 Empty Re: Power problem 17th March 2017, 10:09 am

Gostek

Gostek
Events Organiser
Events Organiser

Glow plugs? Or sticky vtec solenoid??


_________________

https://bbmgarage.co.uk/

110Power problem - Page 5 Empty Re: Power problem 17th March 2017, 10:12 am

Cosmic73

Cosmic73

Fuel pump? bad earth?

111Power problem - Page 5 Empty Re: Power problem 17th March 2017, 11:51 am

Stu

Stu
Admin
Admin

Vacuum box behind the plenum?


_________________
Back againTwisted Evil
http://www.j10-meets.co.uk

112Power problem - Page 5 Empty Re: Power problem 17th March 2017, 12:09 pm

Mr B

Mr B
gtir technician
gtir technician

^ another air leak so pulling air not being metered at idle !

113Power problem - Page 5 Empty Re: Power problem 17th March 2017, 1:48 pm

PartyPete

PartyPete
the one star club
the one star club

For what ever reason the idle screw was screwed all the way in, it was all mashed up but managed to get a sharp screw driver in and turn it out....and hey presto it suddlenly started idling like a brand new un'

114Power problem - Page 5 Empty Re: Power problem 17th March 2017, 1:53 pm

Stu

Stu
Admin
Admin

Mr B wrote:^ another air leak so pulling air not being metered at idle !
Thats exactly what was wrong with mine B.


_________________
Back againTwisted Evil
http://www.j10-meets.co.uk

115Power problem - Page 5 Empty Re: Power problem 17th March 2017, 1:57 pm

Cosmic73

Cosmic73

PartyPete wrote:For what ever reason the idle screw was screwed all the way in, it was all mashed up but managed to get a sharp screw driver in and turn it out....and hey presto it suddlenly started idling like a brand new un'

I was going to say that but assumed it would be the first thing you tried

116Power problem - Page 5 Empty Re: Power problem 17th March 2017, 2:00 pm

Mr B

Mr B
gtir technician
gtir technician

Kind of makes sense as with air leaks it likely revving high so someone at some point counteracted it by winding in that idle screw .
I seen similar on a car with a split diaphragm recirc valve and idle had been restored by winding screw in all way, took me quite some time after fitting a new external valve to figure that out though lol.
well done for chasing it down, should be looking good for next mapping session, fingers crossed for pleasing results ... persistence will payoff bounce

117Power problem - Page 5 Empty Re: Power problem 17th March 2017, 2:00 pm

mike74

mike74

this has got to be the only R ever made to have an idle issue resolved by turning the idle screw  Shocked
glad its sorted though

118Power problem - Page 5 Empty Re: Power problem 17th March 2017, 2:02 pm

Mr B

Mr B
gtir technician
gtir technician

Stu wrote:
Mr B wrote:^ another air leak so pulling air not being metered at idle !
Thats exactly what was wrong with mine B.
So yours was vacuum box, was it pipe missing or a split or something ?

119Power problem - Page 5 Empty Re: Power problem 17th March 2017, 2:04 pm

PartyPete

PartyPete
the one star club
the one star club

We didn't look at it and think ' let's try that' but as we tried it was that chewed up and fucked we couldn't turn it, had to get a screwdriver on the grinder and get it very sharp and hammer it in to the plastic screw to get it to turn, only just managed to turn it

120Power problem - Page 5 Empty Re: Power problem 17th March 2017, 3:27 pm

Stu

Stu
Admin
Admin

Mr B wrote:
Stu wrote:
Mr B wrote:^ another air leak so pulling air not being metered at idle !
Thats exactly what was wrong with mine B.
So yours was vacuum box, was it pipe missing or a split or something ?
Pipes missing.
The large ones on the side.
So was a mass of un metered air.


_________________
Back againTwisted Evil
http://www.j10-meets.co.uk

121Power problem - Page 5 Empty Re: Power problem 17th March 2017, 6:02 pm

johnny gtir

johnny gtir
moderator
moderator

PartyPete wrote:We didn't look at it and think ' let's try that' but as we tried it was that chewed up and fucked we couldn't turn it, had to get a screwdriver on the grinder and get it very sharp and hammer it in to the plastic screw to get it to turn, only just managed to turn it

They plastic ? Sure mine ain't

122Power problem - Page 5 Empty Re: Power problem 17th March 2017, 6:03 pm

Gostek

Gostek
Events Organiser
Events Organiser

I might be wrong but I think there suppose to be plastic blanking plug


_________________

https://bbmgarage.co.uk/

123Power problem - Page 5 Empty Re: Power problem 17th March 2017, 6:16 pm

shroom

shroom
moderator
moderator

All I have looked at are deninately metal?

Glad its sorted anyway or getting better


_________________
Now Shagging sheep on the cheap
You wont find one that's for keeps
Spend the money, find a honey
'Shit' think I need to sell my Sunny!

But woman cant replace a sheep
Oh I wish that for the peace!
But I really cant find my honey
The only one I would give my money
Is one with a great big fleece
And then I would be at peace...

124Power problem - Page 5 Empty Re: Power problem 17th March 2017, 6:23 pm

PartyPete

PartyPete
the one star club
the one star club

shroom wrote:All I have looked at are deninately metal?

Glad its sorted anyway or getting better

We will find out next Friday...

125Power problem - Page 5 Empty Re: Power problem 17th March 2017, 10:22 pm

shroom

shroom
moderator
moderator

I will have a look at mine tomorrow. Will you be bringing the R to Japfest ?


_________________
Now Shagging sheep on the cheap
You wont find one that's for keeps
Spend the money, find a honey
'Shit' think I need to sell my Sunny!

But woman cant replace a sheep
Oh I wish that for the peace!
But I really cant find my honey
The only one I would give my money
Is one with a great big fleece
And then I would be at peace...

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